Antiskid device



cfim SMITH.

} ANTISKID DEVICE.

APPLICATION FILED SEPT. 25 I920.

468,982. I Patented Ja11.17,1922.

INVENTOR ATTORNEYS/ UNITED STATES PATENT OFFICE.

CHARLES M. SMITH. OF GREENFIELD, OHIO. ASSIGNOR OF ONE-HALF TO A. E. BALLENTINE. OF GREENFIELD, OHIO.

ANTISKID DEVICE.

Specification of Letters Patent.

Patented Jan. 17, 1922.

To (17/- zclmm it may concern:

lie it known that l. CHARLES M. .\llTlI.'ll citizen of the United States. residing at Greenfield. in the county of Highland and inte of ()hio,'have invented certain new and useful Improvements in Antiskid Devices, of which the following is a specification, reference being had therein to the accompanying drawin .ly invention relates to anti-skid devices and in particular to'devices for use on heavy automotive equipment, such as trucks.

The object of my invention is to provide a mechanism readily applied to the wheels of automotive vehicles for use during periods of ice and snow and very heavy mud. it is an object of my invention to provide a mechanisn'i which will supplement the ordinary hains now in use on automotive equipment to prevent skiddin Tt is an object of the invention to provide a device wherein the calk o anti-skid elem nt. may he removed when worn out or may he removed for the placing of a different type or a different size of calk.

, l have found in practice that it may he useful to attach this anti-skid device directly to the wheel or it may he useful to attach it to the existing chains. In case the vehicle is stuck in the mud or ice, my device can he applied while standing on the running hoard, as it can be easily locked onto the chains already on the wheel.

Due to the very heavy character of the work to which mechanism embodying my invention is subjected, it is quite essential that the projecting portion or calk can he renewed. It is possible to do this in my 'invention while it is still on the tire without removing the mechanism itself, by simply unscrewing the ealk with a pair of pliers.

Referring to the drawings:

Fig. 1 is aside elevation of the plate andcalkwith a portion of one of the chains attached;

Fig. 2 is an end elevation with the plate}.-

in. section; and

Fig. 3 is a side elevation of a wheel, tire, chains and a plurality of my devices attached thereto.

Referring to the drawings. and in partic nlar to Fig. 1, 1 is a plate having a plurality of apertures 2 therein for the attaelnnent of the diagonal chains The use of the word diagonal is purely for the matter of convenience of description in the present instance to distinguish these chains from the lateral chains that run around the wheel, as at 4. and the cross chains, as at 5. (Fig. The chains 3 are attached to the chains 4 lay a suitable link or.lock (3. This lock may he of any desired kind or character.

It will he observed that the plate lis curved to tit the curvature of the tire'. The plate is usually longer in the direction of rangitudinal axis of the tire than its width. as witness Fig.

In this plate 1 is located a. calk T. This calk is attached to the plate at 8 and usually isscrewed into it. as shown in Fig. 9. This caik can he changed in size. shape or form to suit the various conditions of work. When worn out or broken. it may be readily unscrewed with a pair of pliers and a fresh one suhstituted. This gives long life to my device. ease of replacement and facilitates the adjustment of it, even on the tire, to varying conditions of work.

This is particularly useful in connection with trucks on long hauls between cities where extreme conditions of roadway and weather are encountered.

My device can he used with existing types of chains or without them. If, the chains are already on the vehicle and it becomes stuck in the mud or ice, my device can be readily attached without the operator getting out into the mud. Again, if the wheel is stuck in the mud or in a rut I can apply my device to that portion of the wheel which is free, an advantage which is not possible with the ordinary chain which must extend completely around the wheel in order to be effective.

Having thus fully described my invention, what I claim as new and desire tosecure by Letters Patent, is: 4

An anti-skid chain comprising later-.11. chains adapted to extend around the run of a lwheel, cross chains connecting the lateral chains, a plurality of arcuate metallictread plates located between a pair of the cross chains, anti-skidding means located on the face of eachplate, diagonal chains extending from each corner of each plate. and a snap hook on one end of each of said chains to connectit to the lateral chains.

In testimony whereof I afiix my signature.

- tJI-IARLES M. SMlTIl. 

